Scientific Supercomputing at the NIH

SAGE

Description

Statistical Analysis for Genetic Epidemiology (S.A.G.E.) is a collection of compiled C++ programs that perform a wide variety of genetic analyses. The range of functionality includes tools for:

  • extracting summary statistics describing the data and evaluating general data quality
  • estimating allele frequencies
  • estimating heritability and familial correlations
  • inferring mixture models for genetic transmission, and penetrance functions, including variable age of onset
  • estimating identity-by-descent (IBD) allele sharing probabilities between relative pairs
  • performing model-based linkage analysis
  • performing model-free linkage analysis
  • performing transmission/disequilibrium (TDT) analysis
  • analyzing trait/allele associations

The programs of SAGE are intended to be used on the Helix platform of the Helix Systems. They are under /usr/local/sage/bin . To start the program, type the full path of the program followed by required parameters. SAGE programs include:

  • assoc
  • ageon
  • decipher
  • fcor
  • freq
  • genibd
  • lodpal
  • lodlink
  • markerinfo
  • mlod
  • pedinfo
  • reltest
  • segreg
  • sibpal
  • tdtex

Version

Type /usr/local/sage/bin/pedinfo on command line

Sample session

Sage example files can be copied from /usr/local/sage/Examples.

% /usr/local/sage/bin/pedinfo InputFile.parameters InputFile.Pedigree PEDINFO -- 1 Aug 2006 14:04:05 -- [S.A.G.E. v5.1.1; 12 Dec 2005] COPYRIGHT (C) 2005 CASE WESTERN RESERVE UNIVERSITY Reading Parameter File....................done. Reading Pedigree File..................... from InputFile.parameters...........done. Sorting Pedigrees.........................done. Generating statistics.....................done. Analysis complete!
Add to your path /usr/local/sage/bin if run sage programs a lot. This directory contains all executables in the package.

For csh or tcsh users, issue this command: % set path=( /usr/local/eigensoft/bin ${path} )
For bash/ksh/sh users, issue this command: % PATH=/usr/local/eigensoft/bin:$PATH

Documentation

sage_UserDoc.pdf